Pullups on both I2C signals (I2C_DATA and I2C_CLK) should be 4.7K. Ensure the pullups connect to the correct I/O voltage rail. For more information, see Section 2.3.2.
If you are planning to use TI's software Processor SDK, be sure to connect I2C0 to the PMIC, as this is the port used for PMIC control.